823230911 has 2 divisors, whose sum is σ = 823230912. Its totient is φ = 823230910.

The previous prime is 823230883. The next prime is 823230977. The reversal of 823230911 is 119032328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823230911 - 2¹⁰ = 823229887 is a prime.

It is a super-3 number, since 3×823230911³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823230011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411615455 + 411615456.

It is an arithmetic number, because the mean of its divisors is an integer number (411615456).

Almost surely, 2^823230911 is an apocalyptic number.

823230911 is a deficient number, since it is larger than the sum of its proper divisors (1).

823230911 is an equidigital number, since it uses as much as digits as its factorization.

823230911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 823230911 is about 28692.0008190436. Note that the first 3 decimals coincide. The cubic root of 823230911 is about 937.2178606042.

The spelling of 823230911 in words is "eight hundred twenty-three million, two hundred thirty thousand, nine hundred eleven".